Post on 07-Nov-2014
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PR STUFF
FABRICATION AND MANUFACTURE
When setting a grommet, the collar size must match
the punch size?(True/False)
TRUE
When using a grommet set to install a grommet, what
should you use to strike the punch?
Rawhide Mallet
What is the most common type fastener used on
clothing?
Glove Fastener
Which of the following type fasteners would you use if you needed extra
security?
Three way locking
Three-way locking snaps are supplied in how many
sizes?
One
Curtain type fasteners are available in how many
sizes?
Two
What method is used to clean grease and dirt from
a slide fastener?
Stoddard Solvent
Why should you use yellow beeswax on hand sewing
thread?
-It contains no oil- To prevent fraying and
untwisting
Which hand stitch should you use when a neat
appearance is necessary to the seam?
Hidden
What type of needle is used to make a hidden
stitch?
2 ½ inch curved
Which of the following is used to temporarily hold a
seam together?
Basting
Which of the following stitches should you use if a
sewing machine is not available?
Running
Which of the following stitches is used to sew an eyelet onto a parachute
container?
Overthrow
After cleaning a slide fastener which of the
following lubricants should you use to lubricate it?
Oil or Graphite
To shorten an interlocking slide fastener, the chain
should be how much shorter than the opening
in the material?
½”
Slide fasteners are available in how many
types?
Two
Slide fasteners are available in how many
sizes?
Five
What grade of slide fastener is made from
brass?
Grade I
Which of the following stitches is a U.S. standard
lock stitch?
301
If your thread should break while sewing a
seam, you should start sewing again?
½” behind the break
What type of seam would you make if you laid one
piece of material on top of another and ran a row of stitches down one side?
Superimposed
There are how many classes of seams?
3
What is the simplest knot used to join two cords
together?
Binders
What knot is used to secure the parachute
suspension lines to the connector links?
Clove Hitch
What is the most commonly used knot to join two cords together?
Square
What knot would you use for a safety tie on ripcord
pins?
Half-hitch
Why is a bias cut used to manufacture a parachute?
-save material-prevent tearing between
two sections-provide elasticity
Bias cuts are made at what angle to the filling
threads?
45 degrees
Which of the following is another name used for
filling threads?
Woof, Weft, Pick
Threads that run lengthwise and parallel to
the selvage edge are called?
Warp
What is the basic unit used in the fabrication of textile
yarns and fabrics?
Fiber
What is the edge of material called that has a woven finish to prevent
raveling?
Selvage Edge
Which type of weave gives the smoothest finish and is
the easiest to manufacture?
Plain
What are the basic weaves?
Plain and Twill
The definition of cloth is any material that is over how many inches from selvage edge to selvage
edge?
12
What determines the weight of a cloth?
Ounces per square yard
What name is given to the force required to break
material?
Tensile strength
Heat is less damaging to cotton than it is to synthetic fibers.
(True/False)
True
Exposure to what element would cause the most
serious damage to nylon material?
Direct Sunlight
An ideal storage area for textile material would be
dry and out of direct sunlight, with a
temperature of how many degrees?
70oF
Webbings are defined as material that is less than how many inches from selvage edge to selvage
edge?
12”
At approximately 700 F, Nomex fabric will begin to
do what?
Char
Textile tapes can weigh up to how many ounces per
square yard?
15
What is the percentage of elasticity in nylon?
100%
What percentage can nylon be stretched without
being damaged?
18 to 40%
Military specifications for parachute materials
require that after 50 hours of exposure to sunlight, parachute fabrics should not lose more than what
percent of its original strength?
25%
What does the term “moisture regain” mean when referring to fibers?
percentage of moisture it absorbs from the air
Nylon has what percentage of moisture
regain?
4.2
What is the melting point of nylon material?
482 F
A carpenter’s square has arm measurements of how
many inches?
18 and 24
A properly set chuck and die will have a clearance of
how many inches?
1/32”
SEWING MACHINES
What size needle should you use to sew elastic
webbing?
24
What size needle would you use if you were going to sew five piles of nylon using type “E” thread?
20
What determines the correct size of needle to be
used on a project?
-type of thread-size of thread
-material to be sewn
What determines the size of a needle?
Diameter of the needle and the size of the eye
When selecting a needle to be used on cloth, which type of point would you
select?
Sharp round point
What is the recommended setting of the feed dogs for
lightweight material?
Slightly less than one tooth above the throat plate
When adjusting the feed eccentric on the 31-15, the stitch regulator should be set at its lowest position.
This is done so the machine will do what?
Form its longest stitch
What, if anything, is the purpose of the grooves on
both sides of a 16x87 sewing machine needle?
Allow the thread to fall back into the needle when
it enters the material
A properly timed needle bar will have the point of the shuttle how far above
the eye of the needle on its upstroke?
1/16”
What is the proper class and variety of the needle
used in the 31-15 machine?
16x87
When the point of the needle reaches the
material, the feed dogs should be at what
position?
On the down stroke and even with the throat plate
Sewing machines are classified as how many
basic types?
2
Sewing machines have how many basic parts?
4
Which stitch is the most commonly used and made
by sewing machines?
Lock stitch
When the bobbin is properly threaded into the
bobbin case, the bobbin will turn clockwise when the free end of thread is
pulled.(True/False)
True
What should you do to prevent the needle thread
from fouling when you start to sew?
Hold both threads for the first 2-3 stitches
When regulating the tension on the needle
thread, you must remember that the
presser foot must be down
A properly formed stitch will have the threads
locking in which position?
In the center of the thickness of material
What is used to regulate the pressure on the
material?
The pressure-regulating thumbscrew
If the thread take-up spring is not correctly set,
you should loosen the setscrew in the arm of the
machine and turn the tension adjusting stud in which direction to lessen
the movement of the spring?
To the left
The class 7-33 sewing machine is intended for
what type of work?
Sewing heavy canvas
What is the difference between the 7-31 and 7-33
sewing machines?
The 7-31 has a clutch on the balance wheel
To set a needle bar that has no timing marks, you
must first set the feed eccentric to how many
stitches per inch?
8
The eye of the needle should be how far below
the sewing hook when it is set properly?
1/16”
When centering the feeding action, what is the
distance between the needle bar and the
pressure bar?
17/32”
The 111 W 152 sewing machine has alternating
pressers with a lift of how many inches?
3/8”
The 111 W 154 sewing machine has a presser foot
lift of how many inches?
½”
On a 111 W class sewing machine, what would
indicate that the bobbin case needs oil?
green felt pad
The needle that is used in a rotary sewing machine
has how many parts?
7
When replacing the bobbin in the 7-33 sewing
machine, you should leave about how many inches of the thread free from the
shuttle?
3
The class 111 sewing machines are capable of sewing up to how many
stitches per minute?
3,000
Which part of a class 111 sewing machine reengages the needle with the hook driving assembly after clearing a thread jam?
safety-clutch lock stud
What is the first step in timing a 111 W series
sewing machine?
Set the eccentric on 0 spi
The class 111 W 151 sewing machine has what
type of feeding action?
Compound feed only
How is the bobbin thread tension regulated on a
rotary type sewing machine?
A small screw on the outside of the bobbin case
What feature on the 211 W 151 sewing machine
prevents damage to the sewing hook?
Safety clutch
What is the maximum speed of the 211 W 151
sewing machine?
4,000 rpm
What needle is used in the 211 W 151 machine?
135 x 7 or 135 x 17
With ¼” clearance under the presser foot, what
needle is used on a 211 W 151 sewing machine?
135 x 7
What needle would you use with a clearance of
3/8”?
135 x 17
When setting the needle into a 211 W 151, which direction should the long
thread groove face?
To the left
What type of stitch is formed by a model 99R-3
sewing machine?
308
What will happen if you turn the zigzag regulating knob clockwise as far as it
will go on a model 99R sewing machine?
It will sew a straight stitch
What is the maximum throw of the needle bar on
a class 143 W 2 sewing machine?
3/16”
When setting the relative position of the presser and needle bar on a 211 W 151
machine, how much clearance must be
maintained?
17/32”
A properly set feed dog on a 211 W 151 machine will show a full tooth above the throat plate when the feed
dog is at its lowest position.
(True/False)
False
The hook saddle on a 211 W 151 machine is
lubricated by which method?
An oil resevoir
What is the maximum throw of the 143 W 3
needle bar?
5/16”
Which direction does the long thread groove face on
the 143 W 3 sewing machine?
Forward
What type of oil is recommended for oiling a
sewing machine?
10W mineral
A sewing machine that is in constant use should be
oiled how often?
Twice a day
What is the stitch range of the 31-15 machine?
7-32 SPI
What is the recommended stitches per minute for the
31-15 machine?
2,200
The 31-15 sewing machine can sew canvas up to a maximum of how many
ounces?
8
Material that is being sewn on a sewing machine is held in position by what
part?
Presser foot
What part of a sewing machine forms the stitch?
Rotary hook or oscillating shuttle
SEWING MACHINE REPAIR
When you are installing the hook driving shaft lock
ratchet, the flange and setscrews face the left of
the machine.(True/False)
True
When installing the presser bar into the
machine head, you should insert it through the upper
bushing about
3 ½”
Before you insert the needlebar rock frame
assembly, the needlebar connecting link must be at
its lowest position.(True/False)
True
When the bobbin case opener is properly
installed, it is in what position?
The curved end points toward the bobbin case
What total number of spline grooves are on a
hook driving shaft?
5
On the hook driving shaft, the end with a spline is
installed first into the right hook driving shaft bearing.
(True/False)
False
When reassembling a sewing machine what part
should you install first?
Hook/Saddle Assembly
Before reassembling a sewing machine, what do you use to smooth rusty
parts?
Grinding compound
Which part eliminates end play in the balance wheel
and arm shaft?
Balance wheel adjusting screw
What part controls the feeding mechanism of the
sewing machine?
Feed Driving Eccentric
What part transfers the motion from the arm shaft
to the needlebar?
Needlebar Driving Stud
What part converts the longitudinal motion of the hook driving shaft to the horizontal motion of the
sewing hook?
Hook Driving Gear
What part allows the thread to pass between the bobbin case and the throat
plate?
Bobbin Case Opener
What is used to remove the needlebar crank friction washer from the sewing
machine after you remove the arm shaft?
Index Finger
What part prevents side to side movement of the needlebar rock frame?
Needlebar Rock frame position bracket
Which screw is loosened a ¼” and is NOT to be removed when you
disassemble the 111 W 155?
Presser bar spring support screw
What screw has a left-hand thread?
Thread take-up lever retaining screw
If binding should occur while removing the
presser bar, what action should you take?
Insert a screwdriver into the lower slot of the
presser bar while applying an upward motion on the
presser bar
When you remove the presser bar, what parts
will fall off?
Presser bar spring bracketReleasing bracket
Guide lever
What is the clearance between the presser foot
and the throat plate of the 31-15?
5/16”
Which is the stitch range on the Consew C-30?
7 to 32 spi
When you set the needlebar and it starts its
upstroke, what is the distance of the hook in
relation to the eye of the needle?
1/16” above
What is the main timing point on a 31-15 sewing
machine?
Needlebar
The 31-15 will sew canvas up to
8 oz
To set the feeding action on a 31-15, you must loosen what screws?
Feed-driving rock shaft crank pinch screw
When timing the pressure lifting eccentric, your should set the sewing
machine at
3 ½” SPI
When adjusting the thread tension and you cannot
properly adjust it with the upper thread tension disc,
what action should you take?
Adjust the bobbin tension
What is the purpose of the thread controller spring?
It prevents the needle from piercing the thread
If your machine is hard to turn after you time and adjust it, what action would you perform?
Check the feeding action
The 111 W 155 may be operated at what
maximum number of stitches per minute?
3,500
The 111 W 155 has a stitch range
of
3 ½ to 32
What component holds the material as the needle is
raised and moves forward for another bight?
Lifting Presser
In which direction will the 111 W 155 machine move the fabric being sewed?
Away from the operator
The 11 W 152 has a stitch range of
5 to 32
The single needle, rotary axis 111 W 155 makes which federal stitches?
301
The 111 W 155 features a rotary axis; to what component does this term apply?
Sewing hook
The feeding action of the 111 W 155 allows which components to move in unison?
Vibrating presser, needle, feed dogs
What is the maximum presser foot lift for the 111 W 155?
½”
Compressed air should never be used to clean a sewing machine
(True/False)
False
What is the maximum presser foot lift for the 111 W 151?
3/8”
The 111 W 155 and 151 are similar in most features except that the 151 has only one
Presser foot
An accumulation of dust and dirt will cause the same sluggish operation problem as a loose power belt.
(True/False)
True
After using a sewing machine, you should clean and oil it.
(True/False)
True
An excessive amount of oil on the working parts of any machine will probably result in
what condition?
Soil the project being sewn
At what minimum interval should sewing machines be given a thorough cleaning and
oiling?
Every 12 months
A clean dust should be used to clean all parts EXCEPT the
Arm shaft
If unable to obtain the recommended oil required by the manufacture, you may use
what oil as a substitute?
Mineral Oil
Continual malfunction of a machine is most likely caused by what condition?
Out of timing sequence
Which part prevents the needle from striking the
sewing hook?
Hook guard
What part controls the feeding motion provided
by the alternating pressers?
Presser lifting eccentric
Which method is used to adjust the hook guard?
Bend the hook guard
What action allows you to adjust the movement of
the feed dogs?
Loosen the feed driving crank pinch screw
To time the sewing hook and the needlebar on the
machine, you should remove what parts?
Throat PlateFeed Dogs
Presser Foot
To set the 111 W class to its maximum stitch length,
what do you do?
Depress the plunger and turn the balance wheel
toward the operator
Complete disassembly of the 111 W 155 is
necessary to properly set the timing sequence.
(True/False)
False
When the arm shaft is timed with the hook drive
shaft, it is necessary to turn the balance wheel
toward the operator until which of the following
components reaches its highest position?
Thread take-up lever
In timing the arm shaft with the hook drive shaft, you must align the timing mark on the timing plate with the timing mark on
what part?
Arm shaft
After timing the arm shaft with the hook drive shaft, you should perform what
action?
Install the motor drive belt
What action prevents the needle from wandering
from side to side?
Ensure the needlebar rock frame hinge stud and guide bracket are tight
CARBON DIOXIDE
What color is CO2?
colorless
How often should be crankcase be serviced?
yearly
In its dry ice form, CO2 has what temperature?
-110 F
What is the weight of the CO2 charge for and LR-1
life raft?
.50
To properly record the weight of a CO2 cylinder, you must use a scale that
is graduated in
1/100 lb
What is the TARE weight of a CO2 cylinder?
Empty weight plus the valve and cable assembly
How often is the commutator lubricated on
a CO2 transfer unit?
never
At a temperature of 72, CO2 gas can be converted into a liquid by applying
how many psi?
600
Depending on temp and pressure, CO2 can take on how many different forms?
3
What effect does 3 % of CO2 in the atmosphere
have on the human body?
Doubles breathing effort
In its gaseous form, CO2 is how many times heavier
than air?
1.53
All markings on a CO2 cylinder must be what
color?
Black
What action would you take if a CO2 cylinder
showed evidence that it had been in a fire?
Return it to supply
If the cylinder being recharged ceases to gain weight, the CO2 in the supply cylinder may be below what minimum
weight?
10 lbs
How often should the oil be checked in the CO2
transfer pump?
monthly
If a CO2 cylinder has a dent exceeding 1/16” in depth, what should you
do?
Reject it and return it to supply
Information on a CO2 cylinder must include
what?
Tare weight, Gross weight, Weight of CO2
Why is it recommended to invert the CO2 supply
cylinder when recharging it?
CO2 will remain cooler, allowing it to transfer
faster
A standard supply cylinder will contain approximately how many pounds of liquid
CO2 at a temp of 70 F?
38
A CO2 recharge unit will pump CO2 in what form?
Liquid form only
If a person has been overcome by CO2, what
first aid techniques should be used?
Give artificial resuscitationAdminister oxygenKeep them warm
If a person breathed air that had 10% CO2 what
would be the effect on the human body?
Unconsciousness
What lubricant is used on the idler shaft?
Light Cup Grease
How often should the idler shaft be lubricated?
Every 6 months
The piston rod should be lubricate with
Vaseline
CO2 cylinders must be painted what color?
Gray
CO2 Transfer Equipment
The SC-5 is designed to work with a pressure of
how many psi?
3500
What prevents any recoil in the event the safety disc
ruptures?
Safety Disc Nut
The SC-5 has a flangable safety disc that is designed to release pressure in the pump at what maximum
pressure range?
2650-3000
The SC-5 requires which type of oil?
SAE 30
Gear teeth should be lubricated with
Thin coating of light cup grease
The multibreaker on the Walter Kidde operates on
what total number of amperes?
20
What procedure must you use to lubricate the
bearing housing on the electric motor?
Disassemble the bearing housing
How much oil does the Walter Kidde crankcase
hold?
1 pint
What maximum temperature can a
winterized cylinder be subjected to without
rupturing the safety disc?
160 f
What motor oil is used in the crankcase of the
Walter Kidde?
SAE 20
How much grease should you apply to each bearing?
½ oz
CO2 is stored under what pressure and at what
temp?
850 psig @ 70 F
How much nitrogen is required to winterize the
CO2 cylinder?
200 psi
How many pounds of CO2 are there in a standard
supply cylinder?
50
The Walter Kidde comes with what motor?
¾ hp
When should you replace the piston rod packing on
the SC-5?
Every 2 years
How often is the idler shaft lubricated?
Every 6 months
How often should you change the oil in the
crankcase of the SC-5?
annually
What is the purpose of the flanged-type packing nut?
Holds the packing in place
The piston rod should be lubricated every 6 months
with a light coating of
vaseline
What is the purpose for running-in a new pump?
Check the lubrication
To prevent the expansion of CO2 in the supply hose, the valve should have an
opening of at least
1/8”
If you are required to change the electrical plug on a SC-5 the ground wire
is what color?
white
The motor for the Walter Kidde operates at
1750 rpm
To replace the safety disc on the FLU-6, you need a
torque wrench, a 5/16 socket and a
Piece of hex 5/16 x 2”
How often should you change the oil in the
Walter Kidde crankcase?
150 hours of operation
If it is necessary to wire the SC-5 for 220 power,
where can you find information on the wiring
diagram?
On the nameplate
When adding oil to the SC-5 that does not have a dip stick, you should fill the crankcase to what level?
¼” from the top of the cup
Motor bearings contain enough grease to keep the bearing lubricated for how
long?
2 years
Other than the crankcase, the SC-5 has how many other lubrication points?
1
When lubricating the idler gear and pulley shaft, you should use what type of
lubricant?
Light cup grease
What should you use to clean the motor
commutator on the SC-5?
Dry piece of lint-free cloth
If a leak should develop at the lower end of the
plunger, what type of tool should you use to correct
the problem?
Special rod approximately 3/8” x 6”
The SC-5 will transfer approximately how many
pounds of CO2 out of a full supply cylinder?
38
What motor is standard equipment on the SC-5?
1 hp
The safety disc used in the Walter Kidde pump has
what range?
2650-3000 psi
The ICC requirement for testing a CO2 cylinder
requires that the cylinder be tested at what
pressure?
5/3” the working pressure
How often should a cylinder be hydrostatically
tested?
5 years
Winterized extinguishers can be identified by
¾” yellow dots on opposite sides
How is the multibreaker reset on a Walter Kidde
unit?
Turn the switch to OFF then to ON
LRU-12
How often is the leakage test performed?
Every inspection cycle
How often is the functional test performed?
Every 4th inspection cycle
What ripcord pins are tacked?
First and last
If a suitable air source is not available, what may be
subsituted?
Water pumped Nitrogen (BB-N-411)
The leakage test can be performed on what 2
sections simultaneously?
Seat and Stern
During the leakage test, the bow, seat and stern are inflated to what pressures?
Bow=2.0Seat=1.0
Stern= 2.0
What are the minimum pressures for the bow, seat
and stern during the leakage test?
Bow= 1.6Seat= 0.6Stern= 1.6
A rounded patch should be how much larger than the
damage?
1 ½” on all sides
What is used to clean the liferaft?
¼ to ½ oz of detergent: 1 gal of h20
What length of cord is required when replacing
the mooring line?
16’
What is the minimum cure time for adhesive?
48 hours
The discharge port is torqued to what value?
60 +/- 5 in-lb
The calendar inspection shall not exceed how many
days?
231
What is used to tack ripcord pins?
1 turn, size E, single
When the pull cable is properly installed what
will be visible?
Green dot in the valve cover window
Rips, tears and holes exceeding what length render the LRU NRFI?
2”
How is the cleaning solvent applied?
Back and forth on the 1st and 3rd stroke
one way on the 2nd and 4th
What is the finished length of the knotted righting
line?
10’6” +/- 6”
Hydrostatic testing may be exceeded by how long?
2 years
The LRU-12 accommodates how many
people?
4
How is the seat inflated?
Through the topping off valve using the hand pump
How long should cement be allowed to dry between
coats?
10 minutes
The cement and accelerator mixture is only
good for how long?
8 hours
How much force is applied between the cable ball and snaphook during the cable
proof load test?
50 lbs
The liferaft is inflated to what pressure during the
visual inspection?
1 psi
What is the first step when performing the visual
inspection?
Remove the CO2 cylinder
During the functional test, the liferaft should inflate in
what amount of time?
< 1 minute
The LRU-12 has how many; heaving lines, boarding handles and
righting handles?
2 heaving3 boarding3 righting
What is done to the edges of patches larger than 5”?
scalloped
What is done if the hole in the floor is larger than 1”?
Patch both sides
How much overlap is required when repairing
the seam?
1” minimum
What is the primary solvent used to clean the surface prior to patching?
toulene
The coupling nut is tightened to what torque
value?
145 +/- 5 in-lb
The safety plug is tightened to what torque
value?
29 ft-lb
What is the charge of the CO2 cylinder?
3.25 +/- .04lbs
What size safety wire is used on the inflation
assembly?
.032”
The inflation valve is tightened to what torque
value?
135 +/- 10 ft-lb
LRU-30, 31 AND 32
Are the LRU-30, 31, or 32 air droppable?
no
How often is the vendor repack/overhaul
completed?
5 years
The LRU-30 holds how many people?
8
Frangible links are designed to break with
how much force?
180 lbs
What is the inspection cycle?
448
The LRU-32 holds how many people?
20
The LRU-31 holds how many people?
12
LRU-13
The MROD may ice-up at what temperatures?
35 and below
Where is the LRU-13 stored in C-2 series
aircraft?
Liferaft compartment
The selection of multi-place liferafts for transport aircraft is based on what
criteria?
MissionAvailable space
# of crew and passengers
If a survival item expires prior to next repack what
is done?
Remains in service
CO2 cylinder markings shall be what color and
size?
Black ¼”
The raft inlet manifold coupling nut is tightened
to what torque?
140-150 in-lb
The inflation valve is threaded onto the cylinder
and tightened to what torque?
165-175 ft-lb
The safety plug is tightened to what torque?
29 ft-lb
What is the CO2 cylinder charge?
4.64-4.76
The discharge port is tightened to what torque
value?
60 +/-5 in-lb
LRU-13
The LRU-13 accommodates how many
people?
7
How often is the special inspection performed?
30 days
What must be done to supply cylinders not
equipped with a siphon tube?
Must be inverted
How do you determine if a cylinder is wire-wrapped?
“W” at the end of the part number
What ripcords are safety-tied?
First, middle, and last
LRU-14
The LRU-14 accommodates how many
people?
12
All stitching must be done with what size thread and
stitch range?
Size E, 8-10 spi
What do you inspect if CO2 is leaking from the valve
discharge port?
Valve poppet for worn seat
What sections are inflated through the topping off valves after boarding?
Seat, floor, and upper tube
What part of the liferaft is inflated by the inflation
assembly?
Main tube only
The inflation valve is threaded onto the cylinder
and tightened to what torque?
165-175 ft-lb
The coupling nut on the raft inlet manifold is
tightened to what torque?
140-150 in-lb
What is the CO2 cylinder charge?
4.74-4.86
LPU-21
How often is the calendar inspection performed?
90 days
What configurations are used in non-ejection seat
aircraft?
LPU-21B/PLPU-21C/P
How much does the LPU-21 weigh?
4 lbs
During the beaded handle pull test, all snaps should release before how much
force is applied?
25 lbs
The LPU-21 contains how many MK-124s and dye
markers?
2
An LPU-21 modified by ACC 523 are re-designated
to what?
LPU-27/P22P-7(V)
How often is the special inspection performed?
30 days (aircraft installed)
The webbing belt adjusts to fit what waist sizes?
30-44
LPU-21’s that are modified with a FLU-8 are re-designated to what?
LPU-23A/P
The cap nut on the valve stem is tightened to what
torque?
8+/-1 in-lb
What weight and type of CO2 cylinder is used?
35g type III
An LPU-21D/P configured with the LPU-21C/P flotation assembly is
designated as?
LPU-21C(V)1/P
During the packing the oral inflation valve shall be
in what position?
Locked by the knurled ring
What may happen to the valve stem if the cap nut is
over torqued?
May rotate
The overhand knot on the locking pin lanyard shall
be within what distance of the eye of the pin?
¾”
What is the calendar inspection interval for preservers assigned to
selected air reserve members?
180 days
What is the difference between an LPU-21D/P
and an LPU-35?
The LPU-35 has an extension panel added
How long is the LPU-35 extension panel?
6”
LPU-23
The LPU-23 series is intended for what type of
aircraft?
Ejection seat only
How often is the calendar inspection performed?
90 days
The FLU-8A/P is being replaced with what
assembly?
FLU-8B/P
When will the silver indicator be visible in the
firing check port?
When the inflator has been fired
The manganese dioxide batteries in the FLU-8 have
what total life?
3 years from DOM
What does it mean when the bladder leaks from the
fin seam?
The “V” tape has ruptured
LPU-31
The LPU-31 provides how much buoyancy?
29 lbs
Pressure exceeding how many psi may cause damage to the oral
inflation valve?
10 psi
The LPU-31 is composed of what?
LPP-1/1A and a protective bladder cover
The LPU-31/P is used in what aircraft?
helicopters
The safety wire is twisted a minimum of how many
times?
4
What diameter safety wire is used on the inflation
assembly?
.0159”
The waist belt adjusts to what sizes?
30-52”
How often is the calendar inspection performed on
the LPU-31?
90 days
LPU-36
When is the functional test performed?
Every 360 days or when the bladder is replaced
During the packing, how is the red inflation lanyard
routed?
Under the inflator and between the zipper halves
During the functional test, the LPU-36 shall inflate in
what amount of time?
< 30 seconds
When checking the battery voltage, the multi-meter should be in what mode?
Voltage measuring
How often is the special inspection peformed?
360 days
The LPU-36 weighs how many pounds?
3 1/4
The LPU-36 provides how much buoyancy?
65 lbs
What color is the zipper?
black
What is the primary means of inflation?
Beaded handles
The LPU-36 inflates automatically in what type
of water?
Fresh or salt
The LPU-36 is equipped with what inflation
assembly?
FLU-8
What batteries are used in the FLU-8 inflator?
FW14, 6-V, manganese dioxide
What is the total life of the FW14 batteries?
3 years from DOM
A negative reading during the battery voltage check
indicates what?
Both batteries are backwards
multi-meter leads are backwards
Where are the (+) and (-) probes placed during the battery voltage check?
(-) in the end port of the sensor plug
(+) contact screw head near lever end of inflator
What is the stabilization time during the battery
voltage check?
15 seconds
What does a reading of (0) indicate during the battery
voltage check?
One battery is backwardsfaulty contact
one/both are dischargedno batteries
What is done with batteries if a voltage of 0.1 dc or higher is obtained?
reject
The FLU-8 is disposed of IAW what regulation?
Federal Reg. 49, CFR 173.55
To what pressure are bladders inflated during
the leakage test?
3.25 psig
After 1 hour the pressure in the bladder shall not be less than how many psig?
2.50
The sensor plug cap is tightened to what torque?
15 in-lb
Discard and replace CO2 cylinders that have a
weight less than how many grams of its stamped
weight?
2
How much force is applied to check the security of the
beaded handle?
25 lbs
The cap nut on the FLU-8 is tightened to what
torque?
15 to 16 in-lb
LPU-37
How often is the special inspection performed?
360 days
How much does the LPU-37 weigh?
3 ¼ lbs
What color is the LPU-37 zipper and why?
Same color as the exterior to distinguish it from the
LPU-33
Who is the CFA for the LPU-37?
NAWCAD China Lake
What must be done prior to inflating the LPU-37 using the oral inflation
tubes?
Exterior cover must be opened
The cap nut on the valve stem is tightened to what
torque?
15 +/- 1 in-lb
PARACHUTES
After the firing pin is withdrawn how much force is exerted on the fail-safe
assembly sleeve?
24-35 lbs
What the 5 sizes of Navy parachute canopies?
17, 24, 26, 28, 35
What happens to the pilot parachute at speeds between 90 and 250
knots?
Reduces in size to 24”
What size canopy does the NB-7 have?
28’
The model 7000 automatic opening device is available
in what settings?
10,000’ and 14,000’
The spreader gun produces what diameter mouth at low and high
speeds?
Low= 8’High= 4’
The APRR in an NES-12 fires at what altitude?
14,000 +/- 1,000
What function does the spreader gun fail-safe mechanism perform?
Ensures spreading of the canopy if the cartridge
fails
What size canopy does the NB-6 have?
26’
At speeds from 0 to 90 knots, how does the pilot
parachute inflate?
fully
How many different parachutes are used by the
Navy?
13
MT-1XS/SL
Describe the Main Canopy
370 ft2
7-cell
Describe the reserve chute
270ft2
5-cell
What are the two types of application?
Free-fall and static line
What is the service life?
13 yrs from PIS15 yrs from DOM
When a parachute lacks a PIS date when will the
total life expire?
13 yrs from DOM
A/P28S-32
What size is the canopy?
21’
Where are the Le-Moigne slots located?
180 degrees apart Gores 6 and 16
The intermediate altitude ejection sequence occurs
at what altitudes?
8,000-18,000
How many variants of the A/P28s-32 parachute
assemblies are there and what is the difference?
5; shape and size of the canopy breakers
The low speed/low altitude sequence occurs at what
altitudes?
Below 8,000’
The A/P28S-32 is an integral part of what ejection seat escape
system?
SJU-17
The canopy has how many gores?
20
Where is the withdrawal line connected when the assembly is installed on
the seat?
Parachute deployment rocket motor
The torso harness integrates what items?
Parachute harness, lapbelt assy, shoulder restraint harness and torso vest
MC-6
What is the deployment bag made of?
8.2 oz cotton sateen
What is the finished length of the riser assembly?
30”
What are the two groups of suspension lines 1-20?
1-10 left11-20 right
The static line is capable of supporting how many
pounds?
400
How much does the MC-6 weigh?
42 lbs
The MC-6 is limited to operations in winds of how
many knots at surface?
13
What is the maximum opening time?
4 seconds
What is the repack cycle?
120 days
How many sections are in each gore?
4
What material are gores made of?
1.1 oz nylon
How many control lines?
2
What are control lines made of?
Type III nylon cord, Red
What is the rate of descent?
16 ft per second
How many vent lines?
14
How many suspension lines?
28
What is the reserve chute?
T-11R
What is the T-11R’s repack cycle?
365 days
The main static line is how long?
14’10” +/- 1”
How long are suspension lines?
21’
What is the maximum rate of descent of the T-11R?
26’ per second
What is the maximum deceleration?
8.2g
How many gores does the canopy have?
28
What is the tensile strength of the riser
assembly?
5,500 lbs
What are the pack tray dimensions?
20x14x14
The T-11R has how many suspension lines and
gores?
20
What is the canopy diameter?
32’
What is the maximum deployment speed?
150 KIAS
What is the forward speed of the canopy?
10 knots
NES-12 PACKING
Initial movement of ripcord pins must occur with how much force?
27 lbs
How much force is required to remove the
grip from the container?
15 +/- 5 lbs
The end of the fifth fold extends how far over the
top edge of the container?
5 +/- 1”
The connector link screw is tightened to what
torque?
20-25 in-lb
How much static line is left unstowed?
13 +/- 1/8”
The firing pin on the spreader gun requires how
much force to release?
32 +/- 6 in-lb
Seat/man separation occurs how long after
ejection initiation during intermediate altitude
sequence?
3.10 seconds
What is the acceptable torque value of the knurled
actuating lever?
28-50 in-oz
How many folds are made when stowing the canopy?
6
What is the finished width of the canopy before
stowage?
20”
How can the distance between the last bight and the skirt hem be adjusted?
By increasing or decreasing the length
between bights 8 and 9
The first suspension line bight is formed using what length of suspension line?
16”
What is the acceptable voltage of the PHSRU
batteries?
+22.5
What is the total life of the electronics package
assembly?
8 years
There shall be what length of suspension line between the last stow and the skirt
hem?
14 +/- 1”
What is the allowable force to remove the end fitting
from the arming cable housing?
17 +/- 3 lbs
What length of line shall be between bights?
14 ¾-15 ¼
Where is the firing lanyard positioned at the spreading gun?
Between lines 7 and 8
The aneroid leak detector is located on what side of
the release assembly?
right
What is the total number of suspension line retaining bands?
16
Cartridges are torqued to what value?
84 +/- 12 in-lb
When the cartridge is properly installed where
should the base be located?
Even with the top edge of the chamber
What is used to clean the spreader gun cartridge chamber and threads?
Denatured alcohol
If the spreader gun fails the first firing check what
is done?
It must pass the next 2
How many spring opening eyes are located on the
container?
12
What is the maximum play allowed in the plate of the yoke and plate assembly?
1/32”
The ripcord release must pass how many firing
checks?
3
The arming pin is withdrawn at what
altitude?
20,000’
Altitude is decreased at what rate?
175-200 ft per second
The chamber is evacuated to what minimum pressure
altitude?
25,000’
The ripcord release firing check must simulate firing between what altitudes?
13,000 and 15,000
When is the cross-connector strap replaced?
When the canopy assembly is replaced
What is the total life of the spreading gun?
11 ½ years
What is the total life of the pilot parachute and riser
assembly?
15 years
What is the total life of the external tri-stage pilot
parachute?
13 years
What is the total life of the deployment bag?
15 years
What is the total life of the canopy assembly?
15 years
What is the service/total life of batteries?
4 years
What is done with parts received in new
manufacture’s packaging that lack a DOM?
Use for 1 repack cycle
What is done when a component reaches
service/total life limt?
Return to supply for disposition
What type of components can be replaced without
repack?
External only
What is the maximum scheduled repack cycle?
1232 days
Cartridges are stored IAW what manual?
NA 11-100-1.1
If there is difficulty while removing a cartridge who
is notified?
EOD
When is the firing pull force check performed?
Every repack
How are connector links positioned?
8-14 on top of 1-715-21 on top of 22-28
The spreading gun should be positioned so that what
lines are facing up?
14 and 15
The packer is positioned on what side of the table?
left
NES-12 REPAIR
What is the required length of the spring opening assembly?
4 7/8+/- 1/8
Loose screws on the parachute harness sensing release unit are torqued to
what value?
11-13 in-lb
When can the survival kit be attached to the
parachute assembly?
Before or after seat installation
Where are the static line arming cable ties made?
5 equally spaced points
What is the flute hem tacked to?
Inboard side of riser
What is used to tack the riser to the housing?
3 turns, size 6, doubled, waxed
How are all tackings tied off?
Surgeon’s, square, binder’s
leave ½”
RSSK-3
The O2 bottle should be at what pressure for storage
and shipment?
200= storage25= shipment
The relief valve shall unseat at what pressure?
120-140
What is the finished length of the actuating lanyard?
5”
During the functional test, after actuation the O2 system should indicate how much pressure?
45-80 psi
What are the 5 charging stations?
500-1000-1500-1800-2000
What is the approximate pressure when the gage needle is between the E
and F of REFILL?
250 psi
What must all tacking cord be coated with?
Mixture of 50% parafin and 50% beeswax
The relief valve shall reset at what pressure?
110
How much force is required to unlock the
release handle?
10-30 lbs
How much oxygen is supplied during a high
altitude bailout?
10 minutes
How often is the RSSK-3 repacked?
448 days
What is housed in the lower container?
Life raft and survival items
How is the actuating lanyard tacked?
3 turns of waxed size E thread single
What is the size and capacity of the oxygen
cylinder?
22 cu. In1800 psi
Survival items are secured to what length of cord?
140”
What is the length of the drop line?
26’4” +/- 12” old26’4” +/- 2” new
What is the torque value of the CO2 cylinder?
80-90 in-lb
The opening handle is mounted on what side?
Forward right side
The RSSK-3 is used in what aircraft?
T-2 series
What prevents emergency O2 from escaping
overboard during ejection?
Check valve in oxygen port
What is the composite disconnect?
Joins O2 hoses, g-suit hose and electrical connections
from the aircraft to the aircrewman
What are the functions of the RSSK-3?
Seat and container
The equipment container is secured to the drop line with that length of cord?
52 +/- 1”
How much drop line should be between Boot A
and B during stowage?
7 +/- 1
RSSK-8
The phase/SDLM/PDM inspection cycle shall not exceed what amount of
time?
308 days
How far should the handle travel before the latches
unlock?
½ - 5/8
The emergency oxygen cylinder supplies how
many minutes of oxygen?
10
The slider switch on the URT-33 should be in what
position?
ON
What is the size and pressure of the oxygen
cylinder?
53 cu in.1800 psi
The yellow handle used to open the RSSK-8 is located
where?
Forward right side
During the functional test, the relief valve shall
unseat at what pressure?
120-140
How much force is required to pull the handle free of engagement link?
10-30 lbs
The RSSK-8 is designed for use with what ejection
seat?
Douglas ESCAPAC
The relief valve should reseat and be leak tight at
what pressure?
110
O2 SYSTEMS
What instruction specifies minimum requirements for
survival equipment?
OPNAVINST 3710.7
Who is the only authority for modification to life support equipment?
NAVAIRSYSCOM
Who is the FST for most life support equipment and
survival items?
NAWCAD Pax River
Who is the FST for parachutes, torso
harnesses and related hardware?
NAWCAD China Lake
Who has cognizance over radios and beacons?
NAWC Indianapolis
How many manuals are in the 13 series?
16
O2 COMPONENT CLEANING
The pH should be within what range?
6.5-8.0
What cleaning compound is used to clean the
exterior of LOX converters?
MIL-C-81302
What is the temperature range of the ultrasonic
cleaner?
32-212 F0-100 C
What color is the tank on/off switch?
red
What color is the generator on/off switch?
green
Ultrasonic tanks are filled how close to the top?
1-2”
What can be used to clean an area splashed by NOC?
One pound of citric acid w/ 1 gallon of water
White Vinegar
How much time does the cleaning process step
require?
15 minutes
How long are components rinsed after cleaning?
5 minutes
How long should it take the distilled water to reach
150 F?
60 minutes
If NOC is good bubbles will dissipate in how much
time?
Approximately 2 but no more than 5
What is used to clean oxygen lines?
Ivory dishwashing liquid and warm water
What is in each ultrasonic tank?
1- NOC and distilled water2- distilled water only
What is the solution mixture of NOC and
distilled water?
50/50
What is support equipment used to clean oxygen
components?
HT-1206 Ultrasonic Navy Oxygen Cleaning System
What is indicated when the pH is above 8.0?
Distilled water has been contaminated by NOC
What is the capacity of the ultrasonic cleaner tanks?
1.9 gallons
CRU-82
How often is the CRU-82 subjected to a special
inspection?
30 days
When ascending in altitude how much output flow should be maintained?
3.0 inH20
What will happen if the inlet pressure falls below
10 psi?
PRESS/MANOMETER will overload
What loads the diaphragm lever to produce positive
safety pressure at the regulator outlet?
Safety pressure spring
The pressure breathing feature maintains how much pressure in the
mask?
20.0 in H20 at altitudes between 34-50,000
The safety pressure feature maintains how
much positive pressure in the mask?
.40-2.5 inH2O
The CRU-82 shall never be used above what altitude?
50,000
Chest mounted regulators are designed to be used
with what series of oxygen mask?
MBU-14
What causes the pressure breathing aneroid to
expand at higher altitudes?
Decrease in ambient pressure
How often is the CRU-82 subject to a calendar
inspection?
90 days
What it the flow rate of a CRU-82?
0-100 lpm
The safety-pressure works at what altitudes?
Up to and including 34,000
To purge the CRU-82 how much pressure is applied
and for how long?
90 psi for 1-3 minutes
What is the recommended inlet pressure of a CRU-
82?
5-120 psi
Oxygen enriched air entering the regulator is
controlled by what?
Balanced main valve
How much does a CRU-82 weigh?
9.5 oz
What is the operating altitude range of a CRU-
82?
0-50,000
What is the operating temperature range of a
CRU-82?
-65 to 160 f
Chest mounted regulators can routinely be used up to
what altitude?
43,000
How much pressure must be maintained on the N2 input pressure gage to eliminate suction on
press/suction manom (4)?
At least 90 psig
What shall be used to grip the center stem?
tweezers
The openings of the six external rings must be
placed how many degrees apart?
180
PANEL MOUNT REGULATORS
When should silicone parts be replaced?
Whenever the regulator is disassembled for repair
What is the emergency lever used for?
Emergencies and ground test
At what altitude is the flow suction test performed?
Sea level
During the oxygen ratio test, what are actual flows
converted to?
Indicated flows
How is the average oxygen found during the oxygen
ratio test?
Add minimum and maximum O2 and divide by
2
How is the actual low air computed?
Subtract max O2 percentage from 100% and
multiply by the corresponding actual
output
What type of nitrogen shall be used in testing oxygen
regulators?
Type I, Class I, Grade B (A-A-59503)
What is the pressure range for nitrogen cylinders used
in testing oxygen components?
500-1800 psig
What percentage of oxygen is delivered when
the lever is in the EMERGENCY position?
100%
When is the emergency position used?
When inadequate oxygen supply is suspected
At what altitude is normal breathing?
Up to 30,000
In the emergency position how much positive
pressure is provided to the regulator outlet?
2-4 inH2O
In test mask position how much positive pressure is provided to the regulator
outlet?
6-16 inH2O
The first stage relief valve assembly is set to relieve
at what pressure?
55-60 psi
The first stage reduction chamber reduces supply oxygen to what pressure?
32-35 psi
What provides automatic safety pressure and
pressure breathing at altitudes above 30,000
feet?
Pneumatic actuation of the aneroid assembly
beginning at 27,000
The second stage relief valve assembly provides
additional safety and vents at what rate?
45 lpm @ 40.7 inH2O
How is regulator oxygen purge performed?
Apply 50 psi of ABO for 1-3 minutes
During the emergency pressure test with 0 flow, outlet pressure shall not exceed how many inH2O in the test mask position?
17.5
During the emergency pressure test with the
emergency pressure lever in the emergency position, outlet pressure shall not
exceed what inH2O?
5.5
How is the actual high air computed?
Subtract minimum O2 % from 100% and multiply by
corresponding actual output
What are the 3 lever positions?
NormalEmergencyTest Mask
At what altitude does pressure breathing start?
30,000 ft
An air-oxygen mixture is delivered up to what
altitude?
Up to 32,000 ft
At what altitude is 100% oxygen delivered?
At 32,000 ft
What are the 2 visual indicators?
Pressure gageFlow indicator
What does the diluter lever do?
Selects normal or 100% oxygen
What does the supply lever do?
Opens/closes oxygen supply
Regulators are supplied in what two basic configurations?
Low pressure 50-500 psigHigh pressure 50-2000
psig
GCU-24/A LOX CONVERTER
A converter will explode at what pressure?
1200 psi
If left unchecked pressure can build to how many psi?
12,000
What is the operating pressure of the GCU-24/A?
55-90
What is the maximum build up time?
5 minutes
The opening and closing of the pressure closing valve
keeps pressure at approximately how many
psi?
75
What is the filling pressure?
30 psig
What is the maximum amount of leakage with 95
psig applied?
.01 lpm
To prevent moisture from entering during
shipment/storage the converter is filled with what at what pressure?
Gaseous O2 @ 25-30 psig
What is the operating temperature range?
-65 to 260
What is the relief valve setting?
100-120 psig
What is the filling time at 70 F?
10 minutes
During the evaporation loss test, weight loss shall
not exceed how many pounds?
(BUILD UP AND SUPPLY )
3 lbs in 24 hours
The weight of LOX must be converted to what during
the capitance full test?
decimal
How often is the relief valve forwarded to I-level
for testing?
Every 6 months
The time required to build up a working pressure of
55-90 shall not exceed how many minutes?
5 minutes
Time between bench tests shall not exceed how many
days?
231
During the insulation resistance test, what is the
minimum readings between A to B, A to
ground and B to ground?
A to B=2.0 mega ohmsA/B to ground+ 1.0 mega
ohms
What is the delivery rate?
120 lpm
What company manufactures the GCU-24?
Essex Industries
What company manufactures the GCU-29?
Litton Life Support
What is the LOX capacity of the GCU-24?
10 liters
During the evaporation loss test, weight loss shall
not exceed how many pounds?
(VENTED MODE)
5 lbs in 24 hours
When a pressure of 100-120 psig is applied the
relief valve shall vent how much?
100 lpm
A relief valve installed in the aircraft is set to relieve
at what pressure?
115
During the fill, buildup and vent valve leakage test, leakage shall not exceed
how many lpm in 2 minutes?(70 psig)
.02 lpm
An acceptable reading during the capacitance
test is?
121.5-125.5
What is the pressure closing valve setting?
55-90
OXYGEN EQUIPMENT
How are tools used for oxygen use marked?
“For Oxygen Use Only”
What is done to a LOX converter that is emptied?
Must be purged
Oxygen must be stored what distance from
combustible materials?
At least 50’
What is used to purge filler and distribution lines and
how is it applied?
Heated oil free N2 120 psig for 30 minutes
The bottom converter storage shelf must be how
high off the ground?
At least 10”
Oxygen facilities must be able to maintain what temperature range?
65-75 F
What must be done to all cylinders that fall below 15
psig?
Remove from service for vacuum and heat
drying/hot nitrogen gas drying
Oxygen is how much denser than air?
10%
Where must transformer banks be placed?
Minimum 50’ from transfer shop and LOX storage tank
areas
Converter storage shelves must be how high and
what depth?
No less than 17” high18” deep
How long must clothing splashed with LOX be
aired out?
At least 1 hour
How many converters can be drained at one time?
Maximum of 2
Continuous flow regulators are authorized for use by
whom?
passengers
How many inches are left for each converter?
18
Automatic positive pressure diluter demand regulators shall not be
used above what altitude?
43,000 ft
How are ABO cylinders marked?
Green cylinder w/ 3” white band
“OXYGEN, AVIATOR’S” in 1 ¾”- 2” white letters
Pressure in oxygen storage cylinders shall not fall below what pressure?
50 psig
O2 shops aboard ships that support OBOGS must be capable of how many air
changes?
2.0 per hour
LOX systems are used on what aircraft?
Ones which space, weight and mission considerations
are paramount
What determines oxygen-to-air ration?
altitude
What is the expansion ration of LOX?
862 to 1
Only oxygen conforming to what standard shall be used in aircraft gaseous
oxygen systems?
MIL-PRF-27210
What is the temperature of LOX?
-297 f
In an O2 shop, mechanical exhaust must provide a
minimum of how many air changes per hour?
3
What is the minimum and maximum torque for
5/16” 3/8” ½” tubing?
5/16= 100-1253/8= 200-250½= 300-400
How high must drip pan sides be?
6”
What is the maximum service ceiling of
regulators?
50,000 ft
How are nitrogen cylinders marked?
Gray cylinder, 2 3” black bands
“NITROGEN, OIL FREE” in white
What manual contains instructions for storage, handling and hydrostatic
testing?
NAVAIR 06-20-2
To what standard must LOX conform?
MIL-PRF-27210 TYPE II
What are the 3 categories of aircraft oxygen
systems?
Low pressure 0-500High pressure 0-1800
Reduced HPLOX
What are the characteristics of
trichlorotriflouroethane vapor?
ColorlessOdorlessTasteless
FLOWMETER
The flowmeter is cleaned for oxygen service IAW
what manual?
06-30-501
The seal spindle is loosened using what and
how?
5/32” hex wrench2 turns counter-clockwise
What liquid detergent is used to clean the tube?
MIL-D-16791
What is applied to O-rings during reassembly?
Lubricant, MIL-G-27617, type III
The flowmeter is calibrated at what
interval?
6 months
What is the scale range of the overboard leakage
rotameter?
20-240 ccm
What is the scale range of the low range leakage
rotameter?
20-240 ccm
What is the scale range of the high range leakage
rotameter?
200-2300 ccm
What are meter end fittings made of?
Chromium plated brass
SURVIVAL ITEMS
If Quik-clot will expire before next repack what is
done?
Remove and replace
What is the service/shelf life of bagged water?
5 years
If water purification tablets will expire prior to next repack, what is done?
Remain in service
The overall finished length of the double shroud
cutter shall not exceed what length?
6 7/8”
The lensatic compass has an approximate luminous
life of how long?
10 years
What is the expiration date of water purification
tablets?
3 years from DOM3 years from PIS if no
DOM1 year from date opened
What is the capacity of the canteen?
12 oz
The double bladed shroud line cutter can not be used
with what assemblies?
HBU-11, HBU-23, TRI-SAR
The standard wool blanket has what dimensions?
6’ x 8’
If bagged water lacks a DOM, when will it expire?
15 months from date PIS
The wrist compass can be used to locate what?
lodestone
How long does it take to exhaust a sea dye marker?
20-30 minutes
What is used to sharpen the knife?
whetstone
What is the most valuable general purpose survival
tool?
Survival knife
What is the green zone of a HABD?
2700-3000
What is the primary uses for the wrist compass?
NavigationVectoring aircraft
How long is the hook blade knife?
6”
How are flare lots reclassified?
Naval Ammunition Reclassification messages
(NAR)
Each end of a MK-124 lasts for how long?
20 seconds
What are the two parts of a SRU-31?
Packet 1= medicalPacket 2= general
What does a MK-189 personnel distress signal
kit consist of?
2 MK-796 MK-124
What is the capacity of the emergency drinking water
supply bottle?
4 oz
Theater specific survival kits are used at whose
discretion?
TYCOM
How can the MK-4 signal mirror be used to start a
fire?
Plastic edges can be shaved and used as tinder
How long is the pocket chainsaw?
30”
What is the purpose of rations?
Provide quick energy
Cartridges in a MK-79 are propelled upward how
high?
250-650’
The sea dye marker can be seen how far away at
3,000’?
10 miles
The sea dye marker ceases to be a good target after
how long?
1 hour
With an MROD, how much bagged water is supplied
in a liferaft?
4 oz per person
What are the two ends of a MK-124?
Day- Orange smokeNight- Red flare
Where is the personnel lowering device normally
stowed?
In the RSSK
The type I casualty blanket is what size?
84 x 56
How is the sharpness of the hook blade knife
tested?
2 cuts through type III cord
Where is the lanyard attachment hole located on
the emergency signaling mirror?
In the center
Each cartridge of a MK-79 has what duration?
4 ½ seconds
When are flares that are reclassified removed and
replaced?
When directed by an ACB
Where is the lanyard attachment located on the
MK-4 signaling mirror?
In the corner
The MK-124 is held at arms length at what angle
to the horizontal?
45 degrees
What is the purpose of the manual reverse osmosis
desalinator?
Converts seawater or brackish water into
potable water
How many mechanical patches are packed in the
droppable accessory container of a LRU-15?
2
The hook blade knife should be sharpened to
what?
A razor’s edge
The water storage bag is capable of holding how
much water?
5 quarts
What is the breaking strength of Type I nylon
cord?
100 lbs
What comprises the pocket knife?
Blade, can opener, bottle opener, screwdriver and
leather punch
What is the purpose of a mechanical patch?
Seal a hole in a LRU-15
How often is the MROD sent to the manufacturer for rework and overhaul?
Every 4 and 8 years
What is the ration rate of replacement?
24oo kCal per 3 people
The back of the blade should be at what angle to
the whetstone when sharpening?
20 degrees
Datrex product has what shelf life?
5 years from DOM
What does a lensatic compass contain to
provide self-illumination?
Tritium in glass vials
The leatherman wave survival tool is what length
when closed and open?
4” closed6 ¼” open
The MROD is capable of delivering how much fresh
water?
1.4 gal an hour
What are the dimensions of a MK-124?
5” long1 ½” diameter
What is done if an MROD is due for rework or
overhaul prior to repack?
Remain in service
The type II lightweight casualty blanket is what
size?
96 x 56
What is the climate capacity of a lensatic
compass?
-50 to 150
What is the shelf life of Quik-clot?
3 years
COLD WEATHER SURVIVAL KITS
How long is the survival saw cutting blade?
15”
What is the maximum usage time of chemical
heat packs?
7 hours
What are the dimensions of the survival saw when in
its closed configuration?
17 x 1.5 x 0.5
The cold weather survival kit is intended for use in areas where the average temp does not exceed?
50 f
What is the average burn time of lifeboat matches?
12 seconds
What is the tensile strength of duct tape?
25 lbs per sq in
What is the inside circumference of the
ultima thule sleeping bag?
67”-68”
The SRU-A/P99S-2 is intended for use by how
many aircrewmen?
12
How long are ice screws?
7”
What is the shaft length range of the telescoping
shovel?
14-22”
What are ice screws made of?
Titanium alloy
The self-inflating ground insulator has what
dimensions?
20 x 47 x 1
The ultima thule sleeping bag can be vacuum packed
to what volume?
450 cu in
What is the maximum and average temp of chemical
heat packs?
135 average156 max
The ultima thule sleeping bag fits heights up to how
many feet?
6’6”
What is the load capacity of the plastic bag?
75 lbs
The lightweight extreme weather shelter can be
used in temps below what?
-50
The ultima thule sleeping bag is recommended for
use when temps are below how many degrees?
32
The lightweight extreme weather shelter can
withstand what snow load?
4 lbs per sq ft
The lightweight extreme weather shelter provides protection for how many
people?
Minimum of 3
The lightweight extreme weather shelter can
withstand what amount of wind with minimal
damage?
Over 73 mph
The vial contains how many matches and cotton
fibers?
25
The survival kit provides additional protection for
how long?
72 hours
How often is a special inspection performed?
360 days
What is the tensile strength of rubber tubing?
3500 lbs per sq in
How much does the ultima thule sleeping bag weigh?
6 lbs
What are the dimensions of the lightweight extreme
weather shelter?
Area= 52 sq ftcenter- 48”, wall= 37”
Packed= 24” x 9”
The SRU-A/P99S-1 is intended to be used by
how many aircrew members?
4
LIGHTS
The SDU-39 incorporates what filter lenses?
Infrared and Blue
You should acclimate your eyes for how long before performing the IR lens
test?
5 minutes
What are flash requirements for the SDU-
39 during testing?
50 +/- 10 per min for 2 minutes
What is the operational life of the survivor locator
light?
8 continuous hours
The right angle flashlight includes how many filters?
5; 1 diffused, 1 blue, 2 red,
1 blackout
What color is the ACR/FA-11 crew light?
orange
What color is theACR/FA-11 (M) crew light?
Olive Green
The sidewinder LED lights provide what 4 levels of
output?
Low, medium, medium high and high
When the raised indicator knob of the sidewinder is
in the top position the light is in what mode?
Infrared
The sidewinder has what color LED bulbs?
Green, Blue, IR and White
The voltage reading of batteries installed in the sidewinder must be at least how many volts?
1.5 or greater
FLIGHT CLOTHING
The GS/FRP-2 are cleaned with water up to what
temp?
120 degrees
What are CWU-64/P?
Cold weather flyer’s coveralls
The CWU-36 can be washed in water up to
what temp?
140 degrees
The CWU-36 can be dried at what maximum temp?
180 degrees
What are the CWU-18/p?
Extreme cold weather trousers
The G-1 is managed IAW what instruction?
OPNAVINST 10126.4A
The flyer’s boot is available in what sizes?
3-14
The aircrew safety boot is available in what sizes?
3N – 14 ½ XW
The GS/FRP-2 are available in what sizes?
4-12
What are the CWU-43 and 44/p?
Cold weather underwear
The CWU-23 liner is available in how many
sizes?
12
The CWU-72 is available in how many sizes?
9
The multi-climate protection system consists
of how many pieces?
13
The MCPS can be mixed and matched to form how
many levels?
6
How many square inches of patches may be worn on
flight clothing?
50
What is the largest size patch that can be worn on
flight clothing?
4” in any direction
The coveralls are supplied in what sizes?
32S – 52L
What is the CWU-36/p?
Summer flyer’s jacket
The CWU-36/P provides protection in what
temperature zones?
50 and above
What is the CWU-45/P?
Cold weather flyer’s jacket
ROTARY WING HELMETS
Where is the strobe light securing patch positioned?
¼” to the right and 1” aft of the lens pad
What damage renders the laser visor unusable?
Scratch exceeding 1/3 the visor thickness
What are the 4 thicknesses of zetaliners?
¼, 3/8, 1/2 , 5/8
How do you determine the size and thickness of a
zetaliner?
Last 3 digits of the part number
What support equipment is used to test
communications?
TTU-489
Communications are tested with the TTU-489
IAW what manual?
NAVAIR 17-15BC-22
What are the authorized visor assemblies?
Clear, neutral, gradient, amber and LEP
The thermoplastic liner consists of how many
layers?
5
What are the minimum and maximum number of TPL
layers?
2 minimum5 maximum
What is used when inserting the energy
absorbing liner into the helmet shell?
36” Type VI webbing
Zetaliners are available in how many sizes and
thicknesses?
4/4
The HGU-84 is available in what 4 sizes?
M, L, XL, XL-W
The helmet provides what protection to the aircrew
member?
Eye, ear, head
The helmet is taped IAW with what instruction?
OPNAVINST 3710.7
What size pile fastener is used to secure the strobe
light?
2 x 2
FIXED WING HELMETS
Bladders subjected to what pressures must be
removed from service?
2.5 or greater
What is the maximum allowed leakage in 30
seconds?
.1 psig
The bladder leak test is performed using what
equipment and IAW what manual?
TTU-551NAVAIR 17-15GB-505
How often is the HGU-89 bladder leak tested?
360 days
What 2 stitches can be used to repair the
edgeroll?
Whip and baseball
Unrepairable holes in the edgeroll larger than how many inches render the
helmet unusable?
3”
The boom swivel is located on what side of the
helmet?
Left hand
The bladder kit assembly is available in how many
sizes?
1
When is the amber lens used?
Hazy/overcast during day
The HGU-68 is available in what 3 sizes?
M, L, XL
What 5 series of helmets are used for fixed wing
aircraft?
HGU-66, 68, 85, 87, 89
MBU-12 SERIES
How often is the mask subjected to a special
inspection?
30 days
What is the preferred cleaning solution for the MBU-12 series oxygen
mask?
1% by weight solution of cleaning compound
¼- ½ oz : 1 gal of water
The MBU-17(V)5/P is designed for use in what
aircraft?
E-2C
The mask is qualified for water depths up to how
many feet?
16
The MBU-17(V)3/P is designed for use in what
aircraft?
C-2A
The MBU-16 is used in what aircraft?
AV-8, EA-6B, F/A-18
The MBU-15 is used in what aircraft?
S-3
What test set is used to perform the functional
test?
TTU-489
To ensure maximum downward vision, where
should the mask be positioned?
One finger width below the nose bridge
There should be no more than how many inches of extension in the oxygen
delivery hose?
1”
What distance is measured when selecting the correct
O2 mask size?
Bridge of the nose to just underneath the chin bone
The MBU-17(V)8/P is designed for use in what
aircraft?
MV-22
What does the alternative cleaning solution consist
of?
4 tablespoons of powder detergent : 1 gal of water
The bayonet receiver shall be no closer than what
distance from the edge of the helmet?
½”
What is used to disinfect the oxygen mask?
1/3 cup of bleach : 1 gal of water
The MBU-17(V)6/P is designed for use in what
aircraft?
F-5
What is used to clean the inhalation/exhalation
valve?
70% solution of isopropyl alchohol
The MBU-12 series oxygen mask is available in how
many sizes?
4
What is the cure time of silicone?
24 hours
Where can the year and quarter of manufacture be
found?
Inside the left cheek flap
The bayonet receiver is inserted to what position
during fitting?
Second locking
MBU-23 SERIES
The MBU-23 is designed as an alternative to what
masks?
MBU-12 and MBU-5
What measurement is used to determine mask size?
Distance between nasal root and supermentale
During fitting the bayonet receivers are inserted to
what position?
Second clicking
How often is the special inspection performed?
30 days
What was the MBU-23 series oxygen mask
developed for?
Non-positive pressure breathing for g
applications
The MBU-24/P22P-16 oxygen mask is designed
for use with what helmets?
HGU-87 AND 89
AIRSAVE VEST
The TACAIR vest has how many general pockets?
4
The CMU-36’s metal slide fastener can withstand how much force during
ejection?
600 KIAS
What are the two configurations of the
Airsave vest?
CMU-33 and CMU-36
The vest accommodates what torso sizes?
5% female to the 95% male
In what 3 areas can the vest be adjusted for
fitting?
Back center and under each arm
Tears in the raschel mesh fabric exceeding how
many inches may not be repaired?
4
The vest accommodates what chest sizes?
32-57
The vest can be expanded to accommodate what maximum chest size?
67”
The Airsave is compatible with what life preservers?
LPU-21, 23, 34, 36, 37
CBR Respirators
Who performs the preflight?
PR
When are lithium batteries used?
War
The NiCad battery provides how many hours
of operation?
3 ½ - 4
The lithium battery provides how many hours
of operation?
10+
The hood outlet valves should be in what position
during normal flight operation?
open
What are the 4 positions of the ICU?
Aligned= off, 1st= listen only, 2nd= talk/listen
(acoustic), 3rd= talk/listen (hardwire)
What are the methods of preventing suffocation?
Faceplate ripaway, anti-suffocation disconnect
What is used to clean the orinasal mask?
1 tablespoon bleach : 2 quarts of water
During the functional test, the H-manifold should be
in what position?
Open (horizontal)
How often is the special inspection performed?
(Training and operational)
training- 90 daysoperational- 270 days
The bench test is performed using what test
set?
A/E47T-28
During the pressure test, what is the minimum manometer reading?
2.6 inH2O
What is used to clean exhalation valves?
Isopropyl alcohol
The canisters do not provide protection from
what agents?
Ammonia gasCarbon monoxide
The canister provide protection from sulfur dioxide for how long?
5-10 minutes
Hare training respirators marked?
“TRAINING DEVICE” 1” letters on the front of the
apron in yellow
Who do you contact for custom fit sizes? (XL, XS,
XXS)
NAWCAD Pax River
The bench test is performed IAW what
manual?
NAVAIR 17-15HB-21
What are the 2 sized of neck seals?
Standard and small
What does the hood inlet valve prevent?
Air from being drawn from the hood and into the
orinasal mask
What are the two compartments inside the
mask?
Orinasal area and hood
What are the 3 hood cowl sizes?
XS, standard, XL
What does the H-manifold inlet valve do?
Prevents oxygen from leaking through the pusher
fan
What ICU position is recommended for all
ground comms?
2nd- talk/listen (acoustic)
Where is the hood outlet valve located?
Left side of mask
What is the function of the hood outlet valve?
Permits demisting air to vent
Where is the inhalation valve mounted?
Left side of mask
The nose occluder is available in what sizes?
4mm-7mm
What are the 5 sizes available?
XL, L, S, XS, XXS
What are the 2 sizes and designators of the orinasal
mask?
Large – PSmall - Q
The A/PSSP-14(V)1-4 provides protection at
what altitudes?
Ground – 43,000
What is configurationA/P22P-14(V)1?
Non-oxygen
What is configurationA/P22P-14(V)2?
LOX
What is configurationA/P22P-14(V)3?
OBOGS
What is configurationA/P22P-14(V)4?
Panel mount regulators
URT-140
What is 121.5 MHz?
Civilian Emergency
What is 243.0 MHz?
Military emergency
What is 282.8 MHz?
International emergency
What is 406.025 MHz?
International emergency message frequency
The URT-140 is waterproof at 50 feet for how long?
15 minutes
What is advanced multi-mode waveform?
Allows signal transmission to occur on two
frequencies simultaneously
What is the function of digital messages?
Facilitate the detection and location of a lost pilot
What is the battery storage life?
5 years
The URT-140 transmits on what frequencies?
121.5, 243.0, 406.025
What does the URT-140 transmit on 406.025?
Digital messages
How long, wide and high is the URT-140?
4.9” long2.58 wide1.35 high
The URT-140 is waterproof at two feet for how long?
24 hours
In triple frequency mode, what is the operating life
of the battery?
12 hours
On what frequencies does the URT-140 transmit
distress signals?
121.5 and 243.0
What is the battery service life?
3 years
At 77 degrees how long will the batteries last in the triple beacon mode?
Greater than 24 hours
How much does the URT-140 weigh?
16 oz
URT-140 MAINTENANCE
How often are stored units tested?
365 days
If the BCN LED blinks 2 times what is indicated?
Battery failure
What is the format of the manufacture date?
YY DDD
Non-RFI radio beacons returned to depot should be placed in what status
on JSETS?
pool
If the BCN LED blinks 3 times what is indicated?
RF output failure
How often is the antenna test performed?
3 years
What is the approved battery type?
LSH-14BA
URT-33
The URT-33 transmits on what frequency?
243.0 MHz
How is the URT-33 powered?
9V battery
What is the range of the URT-33?
160 NM @ 30,000’100 NM @ 10,000’
SATELLITE SAR
The C-S system relays emergency information on
what frequencies?
121.5, 243.0, 406.025
What are the 3 segments of the C-S system?
Radio beacon, space, ground
Digitally-coded emergency information is transmitted
on which frequency?
406.025
The C-S system consists of what satellite subsystems?
LEOSAR and GEOSAR
The LEOSAR system can orbit the Earth in what
amount of time?
100 minutes
LEOSAR satellites travel in what direction?
North-South
LEOSAR satellites detect and receive on what
frequencies?(COSPAS)
121.5 and 406.025
LEOSAR satellites maintained by SARSAT receive and transmit on
what frequencies?
121.5, 243.0, 406.025
The GEOSAR satellites orbit the Earth at what
altitude and at what latitude?
36,000km, 0 degrees latitude
What does the ground segment consist of?
Local User TerminalsMission Control Centers
PRC-149 THEORY
The radio always defaults to what receiving AM
channel?
243.0
The PRC-149 operates in AM transceiver mode at
what frequencies?
121.5, 243.0, 282.8
What are the two levels of BIT?
Power-up and maintenance
What is the purpose of the power-up bit?
Verifies the processor works
The maintenance BIT is performed in what mode?
GPS
How often is the maintenance BIT
performed?
90 days
COSPAS-SARSAT puts SAR teams within what radius
of the downed aircrewman?
2000 meters
How is the radio meant to be held?
Right hand, 3-5” from face
Triple frequency beacon mode transmits on what
channels?
121.5, 243.0, 406.025
Burst transmissions during triple frequency bcn are at
what intervals?
50 +/- 2.5 seconds
What is the antenna’s maximum radiation?
22 degrees offset
What mode yields the longest battery life?
GPS
How long does it take to acquire GPS position?
2 minutes
How often is GPS position reacquired?
Every 20 minutes
The PRC-149 has how many operating modes?
6
What frequencies are met on channels; AM1, AM2,
AM3?
AM1-243.0, AM2- 282.8, AM3-121.5
How long does the maintenance BIT last?
51 seconds
PRC-149 MAINTENANCE
Battery date codes must fall within how much time
of each other?
180 days
How often is a GPS acquisition check
performed?
180 days
Maintenance and aircrew personnel should not turn
the selector knob past what position?
GPS
To ensure the radio is RFI, you should obtain how
many consecutive successful bits?
3
If the BCN LED blinks three times what is
indicated?
RF output failure
If the BCN LED blinks 2 times what is indicated?
Battery failure
If the BCN LED blinks 4 times what is indicated?
AM Receiver failure
What is the shelf and service life of batteries?
Shelf= 5 yearsService= 3 years
Following the maintenance BIT, GPS position should be acquired in how much
time?
Less than 5 minutes
How often is the maintenance BIT
performed?
90 days
PRC-112
If the radio fails any test what action takes place?
Forward to Depot
The PRC-112 is tested at I-level how often?
360 days
What ACB replaced the large VOL/OFF knob with
a smaller one?
ACB 860
What is performed prior to placing the radio into
service?
90 day inspection